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Shock absorber bump stop, Rear. Porsche 991 PASM - 99133310502
99133310502
Vehicle Group
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
Information
Shock absorber bump stop. Rear axle.
The Porsche Genuine OE Rear Shock Absorber Bump Stop (Part No. 99133310502) is an original factory rear suspension buffer / additional spring element designed for Porsche 991 models equipped with PASM (Porsche Active Suspension Management). Mounted on the rear shock absorber assembly, this component acts as a protective cushion at the end of suspension travel, helping absorb heavy impacts and preventing the suspension from bottoming out. Porsche also refers to it as an additional spring or shock rubber stop.
Sold individually, 2 required - fits left or right suspension strut
Fits:
For cars with PASM
Porsche 991.1 Carrera 2012 - 2016
Porsche 991.2 Carrera 2017 - 2019
Porsche 991 Turbo 2014 -2021
Diagram ref no 8
The bump stop compresses during extreme suspension movement, cushioning the suspension when the shock absorber approaches full compression. This helps protect the damper, spring assembly, and chassis from excessive impact forces.
On PASM-equipped vehicles, the bump stop also contributes to maintaining the correct suspension characteristics and ride quality under dynamic driving conditions.
Functions & Technical Role
• Suspension protection: Prevents harsh bottoming-out of the rear suspension
• Impact absorption: Cushions heavy suspension compression loads
• Ride quality support: Reduces harsh impacts and vibration transfer
• PASM compatibility: Designed specifically for electronically controlled PASM suspension systems
• OEM precision: Engineered to Porsche factory specifications for exact fit and damping characteristics
Performance-oriented Porsche suspensions often use progressive bump stops that function as a secondary spring during heavy suspension compression.
Fitment / Position on car
• Fitting position: Rear axle
• Location: Mounted on rear shock absorber / damper assembly
• Side: Left = Right
• System: Rear suspension and damping system
The rear bump stop protects the suspension and shock absorber from damage during heavy compression. It also helps maintain ride comfort, handling stability, and proper PASM suspension performance.
When to replace
• Suspension bottoming-out or harsh rear impacts
• Cracked, collapsed, or deteriorated foam/rubber
• Knocking noises from the rear suspension
• During shock absorber replacement or suspension overhaul
• Reduced ride quality or suspension control
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99133310502
The product you are viewing cross references to these numbers
The Porsche Genuine OE Rear Shock Absorber Bump Stop (Part No. 99133310502) is an original factory rear suspension buffer / additional spring element designed for Porsche 991 models equipped with PASM (Porsche Active Suspension Management). Mounted on the rear shock absorber assembly, this component acts as a protective cushion at the end of suspension travel, helping absorb heavy impacts and preventing the suspension from bottoming out. Porsche also refers to it as an additional spring or shock rubber stop.
Sold individually, 2 required - fits left or right suspension strut
Fits:
For cars with PASM
Porsche 991.1 Carrera 2012 - 2016
Porsche 991.2 Carrera 2017 - 2019
Porsche 991 Turbo 2014 -2021
Diagram ref no 8
The bump stop compresses during extreme suspension movement, cushioning the suspension when the shock absorber approaches full compression. This helps protect the damper, spring assembly, and chassis from excessive impact forces.
On PASM-equipped vehicles, the bump stop also contributes to maintaining the correct suspension characteristics and ride quality under dynamic driving conditions.
Functions & Technical Role
• Suspension protection: Prevents harsh bottoming-out of the rear suspension
• Impact absorption: Cushions heavy suspension compression loads
• Ride quality support: Reduces harsh impacts and vibration transfer
• PASM compatibility: Designed specifically for electronically controlled PASM suspension systems
• OEM precision: Engineered to Porsche factory specifications for exact fit and damping characteristics
Performance-oriented Porsche suspensions often use progressive bump stops that function as a secondary spring during heavy suspension compression.
Fitment / Position on car
• Fitting position: Rear axle
• Location: Mounted on rear shock absorber / damper assembly
• Side: Left = Right
• System: Rear suspension and damping system
The rear bump stop protects the suspension and shock absorber from damage during heavy compression. It also helps maintain ride comfort, handling stability, and proper PASM suspension performance.
When to replace
• Suspension bottoming-out or harsh rear impacts
• Cracked, collapsed, or deteriorated foam/rubber
• Knocking noises from the rear suspension
• During shock absorber replacement or suspension overhaul
• Reduced ride quality or suspension control
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99133310502
99133310502
The product you are viewing cross references to these numbers
Price: €92.82
In stock
Related products
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
Shock Absorber Ring. Rear
Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Diagram ref no 4
Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Diagram ref no 4
Price: €16.15
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
Compensating Plate. 3 mm
Rear
Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Old Porsche part numbers:
- 98633350402
- 98733350400
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98633350402
The product you are viewing cross references to these numbers
Rear
Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Old Porsche part numbers:
- 98633350402
- 98733350400
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98633350402
98633350402
The product you are viewing cross references to these numbers
Price: €48.05
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Information
Shock Absorber Additional Spring, Rear Axle.
Fits:
Porsche 986 Boxster 1997>>2004
Porsche 987 Boxster 2005>>2008
Diagram Ref No 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98633330101
The product you are viewing cross references to these numbers
Fits:
Porsche 986 Boxster 1997>>2004
Porsche 987 Boxster 2005>>2008
Diagram Ref No 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98633330101
98633330101
98633330100
The product you are viewing cross references to these numbers
Price: €41.01
In stock